Talk:Color solid

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SVG file[edit]

The description for the SVG image says, "Note: this color sphere does not exactly represent the color sphere's of Itten and Runge, as the sphere does not have all colors opposite their contrasting color." Is this because the primary colors in the image are red, green and blue instead of red, yellow and blue? SharkD (talk) 22:56, 8 January 2008 (UTC)

Also, looking at Runge's solid, I don't see any gray at the center (at least, in the fourth, bottom-right image). I'm not sure the description in the article fits the diagram. SharkD (talk) 06:49, 13 January 2008 (UTC)

Well, Runge's Farbenkugeln plate says itself that these lower images are "Durchschnitt" (through-cut, or cross section), through the equator (left) and through the poles (right). I agree the center looks too dark, but that could be artistic license or an error in reproduction contrast or something.

As to your color spheres, "luminence" is a misspelling, and they show white as having a sigh saturation, which doesn't correspond to any color space that I know of. Maybe it would be better not to try to apply such labels to the sphere. Maybe trying to make it model the Runge sphere would be better? Or, since the Runge is RYB and yours is RGB, just say so. Dicklyon (talk) 08:10, 13 January 2008 (UTC)

Thanks for noticing the typo. It's fixed now.
I find Runge's image different in other ways, as well—to the point that I don't think the text description in the article fits one or the other image. For instance, imagine taking a cross-section at one of the other lattitudes of Runge's sphere (note that the lines of lattitude in Runge's model pass horizontally through the sphere, creating small circles instead of great circles); I'm not sure the cross-section would make a lot of sense, as many of the radial, inner-spheres never reach this "elevation". As you approach the poles (a change in luminance), you are seeing fewer and fewer degrees of saturation for a given hue. Maybe Johannes Itten's model is slightly different. SharkD (talk) 08:50, 13 January 2008 (UTC)